PROPERTIES OF SILICA FUME CONCRETE AND MORTAR

A study of various properties of silica fume concrete is reported. Var ious properties of silica fume concrete, including slump, air-content, compressive strength, flexural strength, permeability, and permeable void volume, were investigated, and the effect of the silica fume repl acement ratio of cement is described. The effects of aggregate content and graduation, water-binder (cement + silica fume), and superplastic izer dosage rate also are discussed. In this investigation, silica fum e-binder ratios ranged from 0.00 to 0.40, water-binder ratios from 0.4 1 to 0.47, aggregate-binder ratios from 1.0 to 4.0, and superplasticiz er-binder ratios from 0.01 to 0.05.